What can we do, to secure our permanent Internet connection and local network against hacking, data spying, data altering etc.?
The solution is called firewall. A firewall is able to defend hacking attempts in a computer system, but it is necessary to administrate the system every time. Normally, a firewall will only protect against unauthorised access from outside. It should be complemented by an Intrusion Detection System (IDS) system. An IDS will protect the system from internal attacks and failure of the firewall. Introduce an Incident Handling System (IHS). Being well prepared is the best condition in order to minimise the damage and losses after an incident. To keep out unauthorised persons it is further recommended to use access codes as passwords. Passwords should not be too short or too easy to find out and they should be changed frequently.
